Argument out of range exception

Questions & Answers
1

Task i am trying to accomplish.

(1) Find all the GameObjects in the scene with the tag “Enemy”, and turn that into a list.(gos list)

(2) if the other list (trs list) count is less than the gos list, instance a new gameobject and add its transform to the trs list

can anyone see why I am getting an “Argument out of range” exception at line 42 here after one value is added to the trs list ?

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

[System.Serializable]
public class GOb
{
    public List<GameObject> gos = new List<GameObject>();
    public List<Transform> trs = new List<Transform>();

}

public class listingTest : MonoBehaviour
{

    public List<GOb> GOBS = new List<GOb>();

    // Update is called once per frame
    void Update()
    {
        CheckAndSet();

    }


    void CheckAndSet()
    {
        foreach (var item in GOBS.Select((x, i) => new { Value = x, Index = i }))
        {
            item.Value.gos = (GameObject.FindGameObjectsWithTag("Enemy")).ToList();
            if (item.Value.trs.Count < item.Value.gos.Count)
            {
                GameObject enemyRep = new GameObject("Enemy");
                item.Value.trs.Add(enemyRep.transform);
                Debug.Log("added");


            }
            for (int i = 0; i < item.Value.gos.Count; i++)
            {
                Debug.Log(item.Value.trs*);*

}
}
}

}

2

It’s always risky to manage two lists together, I would advise to use a Dictionary.
Anyway, the problem here is that you should do a loop and not an if statement, like :
So that it adds as many instances.

         {
             item.Value.gos = (GameObject.FindGameObjectsWithTag("Enemy")).ToList();
             for (int a = item.Value.trs.Count, a < item.Value.gos.Count, a++)
             {
                 GameObject enemyRep = new GameObject("Enemy");
                 item.Value.trs.Add(enemyRep.transform);
                 Debug.Log("added");
             }
             for (int i = 0; i < item.Value.gos.Count; i++)
             {
                 Debug.Log(item.Value.trs*);*

}
}

3

You are iterating over the trs list using the gos count. Try

 for (int i = 0; i < item.Value.trs.Count; i++)